Structure Analysis of the l/η(1440)

  • By an amplitudes analysis of the KKπ system in the J/ψ radiative decay to the K+KπO and the K0SK±π+ final states, we find that there is one 0-+ resonance (M=1467±3MeV,Γ=89±6MeV) and two 1++ resonances (M=1435±3MeV,Γ=59±5MeV and M=1497±2MeV,Γ=44±7MeV), Which are consistent with the η(1440), the f1(1420), and the f1(1510).
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  • [1] D.SCHALRRE,et al、Phys.Lett.97B(1980)329.[2] Z.Bai et al.,Phys.Rev.Lett,65(1990)2507.[3] J.E.Augustin et al,Phys.Rev,D46(1992)1951.[4] D.FReeves et al.,Phys.Rev.,D34(1986)1960.[5] A.Birman et al,Phys.Rev.Lett,61(1988)1557.[6] A.Ando et al,Phys.Rev.Lett.57(1986)1296[7] T.Tsuru,in Proceeding of the Workshop on Hadron Physics,at e+e- Collider,1994.Beijing,P.34[8] H.Aihara et al., Phys Rev.Lett,57(1986)2500.[9] H.Aihara et al.Phys.Rev,D38(1988)1.[10] D.ABauer et al., Phys Rev,D48(1993)3976.[11] J.Z.Bai,et al., Nucl.Instr.and Meth.In Phys Rev., A344(1994)319.[12] Aimin Ma,Yucan Zhu,Zhipeng Zheng,in Proceeding of the Wordshop on HadronPhysicsat e+e- Collider,1994;Beijing,P.82[13] 张霖,郁宏,沈齐兴,高能物理与核物理,19(1995)800.[14] F.James,M.Roos,CERN Prognam Library,D506,1989[15] Qixing Shen,Hong Yu,Jilong Zhang,Phys.Rev.D48(1993)2129.[16] J.J.Becker,et al,Phys.Rev.Lett,59(1987)186.
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Get Citation
BES Collaboration. Structure Analysis of the l/η(1440)[J]. Chinese Physics C, 1996, 20(11): 961-971.
BES Collaboration. Structure Analysis of the l/η(1440)[J]. Chinese Physics C, 1996, 20(11): 961-971. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Structure Analysis of the l/η(1440)

  • Insitute of High Energy Physics, The Chinese Acadamy of Scinces, Beijing100039

Abstract: By an amplitudes analysis of the KKπ system in the J/ψ radiative decay to the K+KπO and the K0SK±π+ final states, we find that there is one 0-+ resonance (M=1467±3MeV,Γ=89±6MeV) and two 1++ resonances (M=1435±3MeV,Γ=59±5MeV and M=1497±2MeV,Γ=44±7MeV), Which are consistent with the η(1440), the f1(1420), and the f1(1510).

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